diff --git a/CHANGELOG.md b/CHANGELOG.md
index 4d353b3..d216345 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -2,6 +2,11 @@
 
 ## Unreleased — WebUI V2 unified operator surface
 
+- Fixed `wallbreaker corpus verify [--update]` (and the `wallbreaker parsel verify`
+  alias) becoming unreachable when the PR #21 and PR #24 lines merged: the dispatch
+  and subparser were dropped from `cli.py` while `_run_corpus_verify` survived as
+  dead code. Load-time pin checks were unaffected; the interactive command works
+  again. Routing is now regression-tested (`tests/test_corpus_cli_routing.py`).
 - Added a shared typed capability catalog so TUI behavior is the canonical contract and
   every registered operation remains discoverable from V2.
 - Added server-owned queued executions with pause, resume, steering, attacker switching,
diff --git a/tests/test_corpus_cli_routing.py b/tests/test_corpus_cli_routing.py
new file mode 100644
index 0000000..25a2a49
--- /dev/null
+++ b/tests/test_corpus_cli_routing.py
@@ -0,0 +1,77 @@
+"""Regression tests: the `corpus verify` CLI routing must stay reachable.
+
+The dispatch was born in 53c9ca2 (roadmap-implementation TG3) and silently
+lost when the PR #21 and PR #24 lines merged in da21689 — _run_corpus_verify
+survived as dead code while nothing failed. These tests pin the routing so a
+future merge cannot strand the command again.
+"""
+from __future__ import annotations
+
+from pathlib import Path
+
+import pytest
+
+import wallbreaker.cli as cli
+from wallbreaker.cli import SUBCOMMANDS, _run_corpus_verify, build_sub_parser
+
+
+def test_corpus_in_subcommands():
+    assert "corpus" in SUBCOMMANDS
+
+
+def test_corpus_verify_parses():
+    args = build_sub_parser().parse_args(["corpus", "verify"])
+    assert args.command == "corpus"
+    assert args.corpus_action == "verify"
+    assert args.update is False
+
+
+def test_corpus_verify_parses_update_and_lock():
+    args = build_sub_parser().parse_args(
+        ["corpus", "verify", "--update", "--lock", "/tmp/other.lock.toml"]
+    )
+    assert args.update is True
+    assert args.lock == "/tmp/other.lock.toml"
+
+
+def test_parsel_verify_alias_parses():
+    args = build_sub_parser().parse_args(["parsel", "verify"])
+    assert args.command == "parsel"
+    assert args.parsel_action == "verify"
+
+
+def test_main_routes_corpus_verify(tmp_path: Path, monkeypatch: pytest.MonkeyPatch):
+    lock = tmp_path / "library.lock.toml"
+    lock.write_text("", encoding="utf-8")
+    called = {}
+
+    def fake_verify(args):
+        called["lock"] = args.lock
+        return 7
+
+    monkeypatch.setattr(cli, "_run_corpus_verify", fake_verify)
+    rc = cli.main(["corpus", "verify", "--lock", str(lock)])
+    assert rc == 7
+    assert called["lock"] == str(lock)
+
+
+def test_main_routes_parsel_verify_alias(tmp_path: Path, monkeypatch: pytest.MonkeyPatch):
+    called = {}
+
+    def fake_verify(args):
+        called["via"] = "parsel"
+        return 0
+
+    monkeypatch.setattr(cli, "_run_corpus_verify", fake_verify)
+    rc = cli.main(["parsel", "verify"])
+    assert rc == 0
+    assert called["via"] == "parsel"
+
+
+def test_main_routes_parsel_update_to_parsel_lib(tmp_path: Path, monkeypatch: pytest.MonkeyPatch):
+    """The verify alias must not swallow the real parsel actions."""
+    monkeypatch.setattr(
+        "wallbreaker.tools.parsel_lib.run_parsel_cli", lambda args: 0
+    )
+    rc = cli.main(["parsel", "list"])
+    assert rc == 0
diff --git a/wallbreaker/cli.py b/wallbreaker/cli.py
index f67191e..e2fd24b 100644
--- a/wallbreaker/cli.py
+++ b/wallbreaker/cli.py
@@ -2,7 +2,9 @@
 
 import argparse
 import asyncio
+import subprocess
 import sys
+from pathlib import Path
 
 from dotenv import load_dotenv
 
@@ -168,7 +170,7 @@ def _add_endpoint_flags(parser: argparse.ArgumentParser) -> None:
     parser.add_argument("--api-key", help="API key literal (prefer --api-key-env)")
 
 
-SUBCOMMANDS = ("lib", "parsel", "eni", "transform", "findings", "report", "export", "check", "regrade", "baseline", "dashboard")
+SUBCOMMANDS = ("lib", "parsel", "eni", "transform", "findings", "report", "export", "check", "regrade", "baseline", "dashboard", "corpus")
 
 
 def build_main_parser() -> argparse.ArgumentParser:
@@ -244,7 +246,7 @@ def build_sub_parser() -> argparse.ArgumentParser:
     parsel = sub.add_parser(
         "parsel", help="Manage the P4RS3LT0NGV3 transform library (MCP server backend)"
     )
-    parsel.add_argument("parsel_action", choices=["update", "list", "path"])
+    parsel.add_argument("parsel_action", choices=["update", "list", "path", "verify"])
 
     eni = sub.add_parser("eni", help="Browse the ENI persona-jailbreak collection")
     eni.add_argument("eni_action", choices=["list", "update", "path"])
@@ -305,6 +307,19 @@ def build_sub_parser() -> argparse.ArgumentParser:
         help="Acknowledge the risk of exposing this unauthenticated single-operator dashboard",
     )
 
+    corpus = sub.add_parser("corpus", help="Manage corpus integrity pins (library.lock.toml)")
+    corpus_sub = corpus.add_subparsers(dest="corpus_action", required=True)
+    cv = corpus_sub.add_parser(
+        "verify",
+        help="Check corpus SHAs against library.lock.toml; non-zero exit on UNRESOLVED or DRIFT",
+    )
+    cv.add_argument(
+        "--update",
+        action="store_true",
+        help="Attempt to resolve actual HEAD SHAs via git ls-remote and update the lock file",
+    )
+    cv.add_argument("--lock", default=None, help="Path to library.lock.toml (default: repo root)")
+
     return parser
 
 
@@ -412,7 +427,11 @@ def main(argv: list[str] | None = None) -> int:
             from .tools.eni import run_eni_cli
 
             return run_eni_cli(args)
+        if args.command == "corpus":
+            return _run_corpus_verify(args)
         if args.command == "parsel":
+            if getattr(args, "parsel_action", None) == "verify":
+                return _run_corpus_verify(args)
             from .tools.parsel_lib import run_parsel_cli
 
             return run_parsel_cli(args)